231775240

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{81611}}^1$

素因数の和:81693

約数の個数: 32

約数和(自身を含む): 528845760

約数和(自身を除く): 297070520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 81611, 163222, 326444, 408055, 652888, 816110, 1632220, 3264440, 5794381, 11588762, 23177524, 28971905, 46355048, 57943810, 115887620, 231775240]

約数ペア:

[(1, 231775240), (2, 115887620), (4, 57943810), (5, 46355048), (8, 28971905), (10, 23177524), (20, 11588762), (40, 5794381), (71, 3264440), (142, 1632220), (284, 816110), (355, 652888), (568, 408055), (710, 326444), (1420, 163222), (2840, 81611)]